Electrostatic wiping non-woven fabric

Abstract

The electrostatic wiping non-woven fabric comprises a water electret non-woven fabric layer, a water-repellent non-woven fabric layer and a superfine fiber spunlace non-woven fabric layer which are compounded with one another, the superfine fiber spunlace non-woven fabric layer comprises a first superfine fiber net, gridding cloth and a second superfine fiber net which are compounded through spunlace. According to the electrostatic wiping non-woven fabric, the used water electret non-woven fabric layer is treated by high-speed water flow, so that the surface of the water electret non-woven fabric layer has charges, and the non-woven fabric has an electrostatic adsorption effect. The superfine fibers and the gridding cloth are used, so that the non-woven fabric has the capability of wiping dirt, and the superfine fibers can improve the wiping effect.

Description

Technical Field

[0001] This utility model relates to an electrostatic wiping nonwoven fabric, belonging to the technical field of wiping nonwoven fabrics. Background Technology

[0002] Static electricity attracts dust, and electrostatically charged nonwoven wipes offer advantages such as softness, high cleaning efficiency, and ease of use. Sticky wiping cloths are ideal for cleaning surfaces before painting, effectively removing dust and foreign matter, resulting in a smoother, more durable, and glossier paint finish. They are widely used in cleaning and wiping in electronics factories, pharmaceutical plants, laboratories, food factories, and precision manufacturing industries, as well as for pre-treatment before applying intermediate or topcoat paint to automobiles, motorcycles, aircraft, and high-end plastic parts. They can also be used for everyday dust removal. However, existing electrostatically charged nonwoven wipes are functionally limited, only capable of attracting dust. Therefore, developing a nonwoven wipe that not only attracts dust is a key challenge. Utility Model Content

[0003] The purpose of this invention is to provide an electrostatic wiping nonwoven fabric. The water-electrode nonwoven fabric layer can generate static electricity and has the function of adsorbing dust, and the use of microfiber mesh and mesh cloth can wipe away dirt.

[0004] To solve the above-mentioned technical problems, the purpose of this utility model is achieved as follows:

[0005] The present invention relates to an electrostatic wiping nonwoven fabric, comprising a composite water electret nonwoven fabric layer, a water-repellent nonwoven fabric layer, and a microfiber spunlace nonwoven fabric layer; the microfiber spunlace nonwoven fabric layer comprises a first microfiber web, a mesh fabric, and a second microfiber web formed by hydroentangling composite.

[0006] Based on the above scheme and as a preferred embodiment of the above scheme: the water electret nonwoven fabric layer is polypropylene water electret meltblown spunlace nonwoven fabric or PLA water electret meltblown spunlace nonwoven fabric.

[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the water-repellent nonwoven fabric layer is water-repellent polyester hydroentangled fabric and water-repellent spunbond nonwoven fabric.

[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the mesh fabric is woven from nylon 6 filaments and has a mesh with a side length of 2-3cm.

[0009] Based on the above scheme and as a preferred embodiment of the above scheme: the polylactic acid fiber used in the PLA water electret meltblown hydroentangled nonwoven fabric has a core-sheath structure, including a sheath layer and a core layer, wherein the core layer is high-melting-point polylactic acid and the sheath layer is electret-modified polylactic acid.

[0010] Based on the above scheme and as a preferred embodiment of the above scheme: a cellulose fiber nonwoven fabric is disposed between the base fabric layer and the water electret nonwoven fabric layer.

[0011] The beneficial effects of this utility model are as follows: The electrostatic wiping nonwoven fabric involved in this utility model uses a water-electret nonwoven fabric layer that is treated with high-speed water flow to give its surface an electric charge, thus enabling the nonwoven fabric to have an electrostatic adsorption effect. The use of microfiber and mesh fabric gives the nonwoven fabric the ability to wipe away dirt, and the microfiber can improve the wiping effect. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the electrostatic wiping nonwoven fabric involved in Example 1;

[0013] Figure 2 This is a schematic diagram of the electrostatic wiping nonwoven fabric involved in Example 2.

[0014] The markings in the diagram are explained as follows: 1-Water electret nonwoven fabric layer; 2-Water repellent nonwoven fabric layer; 3-Microfiber water nonwoven fabric layer; 4-Cellulose fiber nonwoven fabric; 31-First microfiber web; 32-Mesh fabric; 33-Second microfiber web. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] Example 1

[0017] Combination Figure 1 This embodiment will be described in detail below. The electrostatic wiping nonwoven fabric involved in this embodiment includes a water-electret nonwoven fabric layer 1, a water-repellent nonwoven fabric layer 2, and a microfiber spunlace nonwoven fabric layer 3, which are composites of hot melt adhesive web and film. The microfiber spunlace nonwoven fabric layer 3 includes a first microfiber web 31, a mesh fabric 32, and a second microfiber web 33, which are composites by hydroentangling.

[0018] Furthermore, the first microfiber mesh 31 and the second microfiber mesh 33 are island microfibers, which are formed after being impacted by high-speed water flow.

[0019] Electret treatment involves cooling the meltblown fabric with cold water, then blasting it with ultrapure water at a specific angle, pressure, and flow rate. A vacuum pump forces the pure water through the meltblown fibers, generating static electricity through friction between the water and the fabric, thus achieving electret. Using water electret produces more electret material, improving the nonwoven fabric's permeability, ensuring stable electret material with a long retention time, strong adsorption capacity, and good dust adsorption under low resistance conditions. Furthermore, the water electret nonwoven fabric layer 1 is either polypropylene water electret meltblown spunlace nonwoven fabric or PLA water electret meltblown spunlace nonwoven fabric. In this embodiment, PLA water electret meltblown spunlace nonwoven fabric is selected. The polylactic acid fibers used in the PLA water electret meltblown spunlace nonwoven fabric have a core-sheath structure, including a sheath layer and a core layer. The core layer is high-melting-point polylactic acid, and the sheath layer is electret-modified polylactic acid. The melting point of the high-melting-point polylactic acid component is 160-170℃. Electret-modified polylactic acid (PLA) is prepared by drying PLA chips in a 90°C oven for 8 hours, then adding treated electret at a ratio of 100:1 and stirring thoroughly in a high-speed mixer for 10 minutes. This mixture is then combined with high-melting-point PLA to prepare core-sheath structure PLA fibers. The electret is treated by drying it in an 80°C oven for 2 hours, then adding polyethylene wax powder and mixing thoroughly. Finally, titanate coupling agent diluted with petroleum ether is added and stirred for 20 minutes to ensure complete mixing. Tourmaline powder is used as the electret. If all PLA fibers are prepared using electret-modified PLA, it would be wasteful as the core does not generate static electricity through friction with pure water. Therefore, a core-sheath structure PLA fiber with an electret layer is selected, and the thickness of the sheath layer is one-third to one-half of the entire PLA fiber radius; in this example, one-third is chosen. The fiber fineness used in the PLA water-electret meltblown spunlace nonwoven fabric is 1.2D.

[0020] Furthermore, the water-repellent nonwoven layer 2 is made of water-repellent polyester spunlace fabric or water-repellent spunbond nonwoven fabric. In this embodiment, water-repellent polyester spunlace fabric is selected. Specifically, the spunlace fabric reinforced by hydroentangling is impregnated with a treatment solution containing a water-repellent agent and then dried, which further improves its water-repellent effect. This ensures that when using the microfiber spunlace nonwoven fabric layer 3, the absorbed moisture will not diffuse to the water-electret nonwoven fabric layer 1.

[0021] Furthermore, the style fabric is woven from nylon 6 filaments and has a mesh with a side length of 2-3cm.

[0022] Example 2

[0023] Combination Figure 2This embodiment will be described in detail below. The electrostatic wiping nonwoven fabric involved in this embodiment differs from that in Embodiment 1 in that a cellulose fiber nonwoven fabric 4 is disposed between the base fabric layer 2 and the water-electret nonwoven fabric layer 1. Specifically, the cellulose fiber nonwoven fabric 4 is a viscose fiber spunlace nonwoven fabric, which can absorb moisture through the microfiber spunlace nonwoven fabric layer 3 without affecting the performance of the microfiber spunlace nonwoven fabric layer 3.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A nonwoven fabric for electrostatic wiping, characterized in that, It includes a composite water-electret nonwoven fabric layer (1), a water-repellent nonwoven fabric layer (2), and a microfiber spunlace nonwoven fabric layer (3); the microfiber spunlace nonwoven fabric layer (3) includes a first microfiber web (31), a mesh fabric (32), and a second microfiber web (33) that are hydroentangled.

2. The electrostatic wiping nonwoven fabric according to claim 1, wherein The water electret nonwoven layer (1) is a polypropylene water electret meltblown spunlace nonwoven fabric or a PLA water electret meltblown spunlace nonwoven fabric.

3. The electrostatic wiping nonwoven fabric according to claim 1, wherein The water-repellent nonwoven layer (2) is a water-repellent polyester spunlace fabric and a water-repellent spunbond nonwoven fabric.

4. The electrostatic wiping nonwoven fabric according to claim 1, wherein The mesh fabric (32) is woven from nylon 6 filaments and has a mesh with a side length of 2-3cm.

5. The electrostatic wiping nonwoven fabric according to claim 2, wherein The PLA water electret meltblown hydroentangled nonwoven fabric uses polylactic acid fibers with a core-sheath structure, including a sheath layer and a core layer. The core layer is high-melting-point polylactic acid, and the sheath layer is electret-modified polylactic acid.

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